office-gobmx/reportdesign/inc/reportformula.hxx
2011-01-09 20:51:39 +00:00

137 lines
4.9 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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#ifndef REPORTFORMULA_HXX
#define REPORTFORMULA_HXX
#include "dllapi.h"
/** === begin UNO includes === **/
#include <com/sun/star/uno/Any.hxx>
/** === end UNO includes === **/
#include <osl/diagnose.h>
//........................................................................
namespace rptui
{
//........................................................................
//====================================================================
//= ReportFormula
//====================================================================
class REPORTDESIGN_DLLPUBLIC ReportFormula
{
public:
enum BindType
{
Expression,
Field,
Invalid
};
private:
BindType m_eType;
::rtl::OUString m_sCompleteFormula;
::rtl::OUString m_sUndecoratedContent;
public:
/// constructs a ReportFormula object from a string
ReportFormula( const ::rtl::OUString& _rFormula );
/// constructs a ReportFormula by BindType
ReportFormula( const BindType _eType, const ::rtl::OUString& _rFieldOrExpression );
~ReportFormula();
ReportFormula& operator=(class ReportFormula const &);
/// returns whether the object denotes a valid formula
bool isValid() const;
/// returns the type of the binding represented by the formula
inline BindType getType() const { return m_eType; }
/// returns the complete formula represented by the object
const ::rtl::OUString&
getCompleteFormula() const;
/** gets the <em>undecorated formula</em> content
If the formula denotes a field binding, the <em>undecorated content</em> is the
field name.
If the formula denotes an expression, then the <em>undecorated content</em> is the expression
itself.
*/
const ::rtl::OUString& getUndecoratedContent() const;
/// convenience alias for <code>getUndecoratedContent</code>, which asserts (in a non-product build) when used on an expression
inline ::rtl::OUString getFieldName() const;
/**
@returns "=" + getFieldName()
*/
::rtl::OUString getEqualUndecoratedContent() const;
/// convenience alias for <code>getUndecoratedContent</code>, which asserts (in a non-product build) when used on a field
inline ::rtl::OUString getExpression() const;
/** returns a bracketed field name of the formula denotes a field reference,
or the undecorated expression if the formula denotes an expression.
Effectively, this means the method returns the complete formular, stripped by the prefix
which indicates a field or a expression.
*/
::rtl::OUString getBracketedFieldOrExpression() const;
private:
void impl_construct( const ::rtl::OUString& _rFormula );
};
//--------------------------------------------------------------------
inline ::rtl::OUString ReportFormula::getFieldName() const
{
OSL_PRECOND( getType() == Field, "ReportFormula::getFieldName: not bound to a field!" );
return getUndecoratedContent();
}
//--------------------------------------------------------------------
inline ::rtl::OUString ReportFormula::getExpression() const
{
OSL_PRECOND( getType() == Expression, "ReportFormula::getExpression: not bound to an expression!" );
return getUndecoratedContent();
}
//........................................................................
} // namespace rptui
//........................................................................
#endif // REPORTFORMULA_HXX
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */